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  1. Article ; Online: Hamacher Weighted Aggregation Operators Based on Picture Cubic Fuzzy Sets and Their Application to Group Decision-Making Problems

    Li Yanhong / Rabia Ambrin / Muhammad Ibrar / Muhammad Ali Khan

    Security and Communication Networks, Vol

    2022  Volume 2022

    Abstract: In this study, an extended version of intuitionistic cubic fuzzy Hamacher weighted aggregation operators is the primary objective of the expected study. We establish new concept, picture cubic fuzzy set, and utilize this new concept for ranking in ... ...

    Abstract In this study, an extended version of intuitionistic cubic fuzzy Hamacher weighted aggregation operators is the primary objective of the expected study. We establish new concept, picture cubic fuzzy set, and utilize this new concept for ranking in decision analysis. Picture cubic fuzzy Hamacher weighted averaging operator, picture cubic fuzzy Hamacher order weighted averaging, and picture cubic fuzzy Hamacher hybrid averaging operator are developed on the basis of picture cubic fuzzy sets. Some unique cases and few suitable properties of these proposed operators are also examined. In addition, based on these expected operators, we are designing a new multicriteria group decision-making framework. The proposed aggregation operators can be used in the performance evaluation of energy projects and security systems and devices. We give an illustrative example for the selection of small hydropower plants locations as an implementation and appropriateness of the proposed algorithm. Finally, we perform a comparative review of the designed algorithm with intuitionistic cubic fuzzy Hamacher weighted averaging operators to expose the new algorithm efficiency, feasibility, and goodness.
    Keywords Technology (General) ; T1-995 ; Science (General) ; Q1-390
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Hindawi-Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Attitude of university students on online teaching under corona virus pandemic situation in Pakistan

    Bareera Saeed / Asmat Ullah / Muhammad Ali Khan

    Liberal Arts and Social Sciences International Journal, Vol 5, Iss

    2021  Volume 1

    Abstract: The COVID-19 has resulted in schools, colleges and universities shut all across the world. As a result; education has changed dramatically, with the distinctive rise of e-learning, whereby teaching is undertaken remotely and on digital platforms. This ... ...

    Abstract The COVID-19 has resulted in schools, colleges and universities shut all across the world. As a result; education has changed dramatically, with the distinctive rise of e-learning, whereby teaching is undertaken remotely and on digital platforms. This research study examines the attitudes of university students towards online teaching under corona virus pandemic situation in Pakistan. A cross sectional study design was used on 400 (Male=195, Female=205) university students. A convenient sampling technique was used to draw the sample from different universities in the province of Punjab, Pakistan. An online survey was conducted to collect the data. Descriptive statistics were calculated out to measure the distribution of attitude of study participants. Frequency and percentages were estimated to assess the attitude towards online mode of learning, and opinion on educational decisions, and problems related to study due to lockdown. All analyses were performed using the SPSS-V20. The results of study highlighted that a large majority of student (83.9 percent) preferred face-to-face classroom teaching method. This study concluded that in Pakistan, despite picking up gigantic ubiquity nowadays, virtual education has still not been grasped by students. Students are still more in the favour of face-to-face classroom teaching.
    Keywords COVID-19 ; education ; Education in Pakistan ; learning approach ; students learning approach ; classroom ; Social Sciences ; H ; Political science ; J
    Subject code 370
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher IDEA PUBLISHERS
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: OFFICE BASE MANAGEMENT OF NON-PROLAPSED INTERNAL HEMORRHOIDS

    Tahir Iqbal Mirza / Muhammad Ali Khan / Waqas Ahmed / Adee Hussain

    Pakistan Armed Forces Medical Journal, Vol 69, Iss 2, Pp 250-

    SINGLE VERSUS DOUBLE BAND LIGATION

    2019  Volume 254

    Abstract: Objective: To compare single versus double band ligation in the office based management of non-prolapsed internal hemorrhoids. Study Design: Randomized controlled trial. Place and Duration of Study: Outpatient department of Surgery, CMH Rawalpindi, from ... ...

    Abstract Objective: To compare single versus double band ligation in the office based management of non-prolapsed internal hemorrhoids. Study Design: Randomized controlled trial. Place and Duration of Study: Outpatient department of Surgery, CMH Rawalpindi, from Jan 2015 to Dec 2016. Material and Methods: All patients (216 patients, 108 in each group) presenting with bleeding, non-prolapsed internal hemorrhoids were included in the study after approval from hospital ethical committee. Patients with bleeding disorders and other ano-rectal conditions causing bleeding per rectum were excluded. Lignocaine gel (2%), disposable proctoscope, Barron’s ligator with grasper & black silicon bands (Germany) of 2mm diameter were used. The follow up regimen inclusive of Polycarbophil (Fibercon) sachet, Micro Purified Flavonoid Fraction (MPFF) (Daflon 500mg) and warm water sitz bath was same for both the groups of our study. Results: A total of 216 patients meeting the inclusion and exclusion criteria were selected and divided into two equal groups. In group A of double band ligation, mean age was 39.3 ± 1.7 years and mean time for fall of band was 6.6 ± 1.3 days (p=0.000). While in group B of single band ligation, mean age was 41.2 ± 2.1 years & mean time for fall of band was 7.2 ± 1.5 days (p=0.03) while the mean time of fall between the two groups was insignificant (p=0.251). Conclusion: Double band ligation for non-prolapsed bleeding hemorrhoids was found more simple, accessible,cost effective and more reliable than the single band ligation. Frequent visits of the patient can be minimized. The complications in both groups are same. It has reasonable early recovery, but equivocal recurrence.
    Keywords office based management ; ligation and recovery ; Medicine ; R ; Medicine (General) ; R5-920
    Subject code 621
    Language English
    Publishing date 2019-04-01T00:00:00Z
    Publisher Army Medical College Rawalpindi
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Experimental Evaluation of Surface Roughness, Burr Formation, and Tool Wear during Micro-Milling of Titanium Grade 9 (Ti-3Al-2.5V) Using Statistical Evaluation Methods

    Muhammad Ayyaz Khan / Muhammad Ali Khan / Shahid Aziz / Muhammad Iftikhar Faraz / Abdul Malik Tahir / Syed Husain Imran Jaffery / Dong-Won Jung

    Applied Sciences, Vol 13, Iss 23, p

    2023  Volume 12875

    Abstract: Titanium grade 9 (Ti-3Al-2.5V) stands out as a preferred material in various industrial applications because of its suitable properties. Its applications span diverse sectors, including precision manufacturing, where it is utilized to produce honeycomb ... ...

    Abstract Titanium grade 9 (Ti-3Al-2.5V) stands out as a preferred material in various industrial applications because of its suitable properties. Its applications span diverse sectors, including precision manufacturing, where it is utilized to produce honeycomb structures for advanced aeronautics, as well as for certain biomedical components. In parallel, micro-milling has gained widespread utilization across medical, aerospace, and electronic industries due to the increasing demand for miniature products in these domains. This current research study aims to explore the impact of various micro-milling process parameters—specifically, feed rate, cutting speed, and depth of cut—on the surface quality, burr formation, and tool flank wear of titanium grade 9. Research findings reveal that the feed rate plays a major role in influencing surface roughness (contribution ratio (CR): 62.96%) and burr formation (CR: 55.20%). Similarly, cutting speed and depth of cut significantly affect surface roughness, contributing 20.32% and 9.27%, respectively, but are insignificant factors for burr width. Tool flank wear is primarily influenced by cutting speed (CR: 54.02%), with feed rate contributing 33.18%. Additionally, the feed rate and cutting speed are significant factors in determining the length of the burr, with contribution ratios of 77.70% and 7.77%, respectively. Confirmatory tests conducted at optimum parameters selected from the main effects plot validated the experimental results.
    Keywords Ti-3Al-2.5V ; titanium alloy (grade-9) ; micro-milling ; analysis of variance ; burr formation ; tool flank wear ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 670
    Language English
    Publishing date 2023-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Acute Gastrointestinal Bleeding in COVID-19 Patients

    Umair Iqbal / Hafsa Anwar / Hafiz Umair Siddiqui / Muhammad Ali Khan / Faisal Kamal / Bradley D. Confer / Harshit S. Khara

    Clinical Endoscopy, Vol 54, Iss 4, Pp 534-

    A Systematic Review and Meta-Analysis

    2021  Volume 541

    Abstract: Background/Aims More than 100 million people to date have been affected by the coronavirus disease-2019 (COVID-19) pandemic. Patients with COVID-19 have a higher risk of bleeding complications. We performed a systematic review and meta-analysis to ... ...

    Abstract Background/Aims More than 100 million people to date have been affected by the coronavirus disease-2019 (COVID-19) pandemic. Patients with COVID-19 have a higher risk of bleeding complications. We performed a systematic review and meta-analysis to evaluate the outcomes of COVID-19 patients with signs and symptoms of acute gastrointestinal bleeding (GIB). Methods A systematic literature search was carried out for articles published until until November 11, 2020, in the Embase, MEDLINE, Web of Science, and Cochrane Library databases. We included studies on COVID-19 patients with signs and symptoms of GIB. Results Our search yielded 49 studies, of which eight with a collective 127 patients (86 males and 41 females) met our inclusion criteria. Conservative management alone was performed in 59% of the patients, endoscopic evaluation in 31.5%, and interventional radiology (IR) embolization in 11%. Peptic ulcer disease was the most common endoscopic finding, diagnosed in 47.5% of the patients. Pooled overall mortality was 19.1% (95% confidence interval [CI]; 12.7%-27.6%) and pooled mortality secondary to GIB was 3.5% (95% CI; 1.3%–9.1%). The pooled risk of rebleeding was 11.3% (95% CI; 6.8%–18.4%). Conclusions The majority of COVID-19 patients with GIB responded to conservative management, with a low mortality rate associated with GIB and the risk of rebleeding. Thus, we suggest limiting endoscopic and IR interventions to those with hemodynamic instability and those for whom conservative management was unsuccessful.
    Keywords acute gastrointestinal bleeding ; covid-19 ; mortality ; novel coronavirus ; rebleeding ; Internal medicine ; RC31-1245 ; Diseases of the digestive system. Gastroenterology ; RC799-869
    Subject code 610
    Language English
    Publishing date 2021-07-01T00:00:00Z
    Publisher Korean Society of Gastrointestinal Endoscopy
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Comparison of Phytochemical Constituents and Pharmacological Activities of Various Solvent Extracts Obtained from Millettia speciosa Stem Powder

    null Nasiruddin / Guangying Chen / Xiaobao Li / Ji Minghui / Tariq Masood / Waqas Safir / Muhammad Ali Khan / Muhammad Numan / Arsalan Khan / Muhammad Zeeshan / Shah Zeb

    BioMed Research International, Vol

    2022  Volume 2022

    Abstract: Millettia speciosa is a plant extensively used as an important component in Chinese herbal medicine and food-based medicines. The present study was carried out to determine the total flavonoid content (TFC), volatile phytoconstituents, and ... ...

    Abstract Millettia speciosa is a plant extensively used as an important component in Chinese herbal medicine and food-based medicines. The present study was carried out to determine the total flavonoid content (TFC), volatile phytoconstituents, and pharmacological activities, i.e., antityrosinase, sunscreen, and anticancer activity, of different fractions of M. speciosa stem. Different organic solvents of increasing polarity, i.e., petroleum ether (PE), ethyl acetate (EtOAc), and methanol (MeOH), were used for extraction. The highest total flavonoid content, i.e., 48.30±0.90%, was reported for PE extract. Various important phytocomponents were revealed by gas chromatography-mass spectroscopy (GC-MS) analysis. Based on abundance, the major compounds were n-hexadecanoic acid (16.654%), n-hexadecanoic acid (14.808%), and beta-sitosterol (6.298%) for PE, EtOAc, and MeOH extract, respectively. The significant antityrosinase activity, i.e., 70.97±0.66%, with an IC50 value of 4.58 mg/mL was noted for PE extract followed by EtOAc extract, i.e., 59.84±0.67%, with IC50 value of 6.10 mg/mL. The maximum sunscreen activity was reported for PE extract exhibiting the maximum absorbance value (0.633±0.06) in the ultraviolet (UV) region, i.e., UVC, while EtOAc extract showed the second highest level of absorbance in the UVB range, i.e., 0.632±0.07. The strongest anticancer activity (49.73±0.49% cell viability) towards MCF-7 breast cancer cell line was reported for PE extract with IC50 197.51 μg/mL. Our results confirmed the presence of potential therapeutic components for each extract with significant biological functions, showing the importance of the M. speciosa stem as a source of biomedicine. To our knowledge, this is the first report on M. speciosa stem extending comprehensive research about its phytochemical profile and various significant pharmacological activities.
    Keywords Medicine ; R
    Subject code 571
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Promoting Plant-Based Therapies for Chronic Kidney Disease

    Muhammad Ali Khan MPharm / Andrew J Kassianos PhD / Wendy E Hoy MD / AHM Khurshid Alam PhD / Helen G Healy MD / Glenda C Gobe PhD

    Journal of Evidence-Based Integrative Medicine, Vol

    2022  Volume 27

    Abstract: Chronic kidney disease (CKD) is debilitating, increasing in incidence worldwide, and a financial and social burden on health systems. Kidney failure, the final stage of CKD, is life-threatening if untreated with kidney replacement therapies. Current ... ...

    Abstract Chronic kidney disease (CKD) is debilitating, increasing in incidence worldwide, and a financial and social burden on health systems. Kidney failure, the final stage of CKD, is life-threatening if untreated with kidney replacement therapies. Current therapies using commercially-available drugs, such as angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers and calcium channel blockers, generally only delay the progression of CKD. This review article focuses on effective alternative therapies to improve the prevention and treatment of CKD, using plants or plant extracts. Three mechanistic processes that are well-documented in CKD pathogenesis are inflammation, fibrosis, and oxidative stress. Many plants and their extracts are already known to ameliorate kidney dysfunction through antioxidant action, with subsequent benefits on inflammation and fibrosis. In vitro and in vivo experiments using plant-based therapies for pre-clinical research demonstrate some robust therapeutic benefits. In the CKD clinic, combination treatments of plant extracts with conventional therapies that are seen as relatively successful currently may confer additive or synergistic renoprotective effects. Therefore, the aim of recent research is to identify, rigorously test pre-clinically and clinically, and avoid any toxic outcomes to obtain optimal therapeutic benefit from medicinal plants. This review may prove to be a filtering tool to researchers into complementary and alternative medicines to find out the current trends of using plant-based therapies for the treatment of kidney diseases, including CKD.
    Keywords Other systems of medicine ; RZ201-999 ; Homeopathy ; RX1-681
    Subject code 580
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher SAGE Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Aqueous Garlic Extract as a Plant Biostimulant Enhances Physiology, Improves Crop Quality and Metabolite Abundance, and Primes the Defense Responses of Receiver Plants

    Sikandar Hayat / Husain Ahmad / Muhammad Ali / Kashif Hayat / Muhammad Ali Khan / Zhihui Cheng

    Applied Sciences, Vol 8, Iss 9, p

    2018  Volume 1505

    Abstract: Biostimulants are the next-generation choice for sustainable agricultural production and are gradually becoming an alternative to synthetic chemicals. Various botanicals are proposed to exert stimulatory effects, and garlic allelochemicals are among such ...

    Abstract Biostimulants are the next-generation choice for sustainable agricultural production and are gradually becoming an alternative to synthetic chemicals. Various botanicals are proposed to exert stimulatory effects, and garlic allelochemicals are among such botanicals; however, a peer-reviewed scientific evaluation is required to understand garlic-derived substances such as biostimulants. Current studies were therefore performed to identify the bioactivity of garlic extract as a biostimulant to improve crop quality, alter its physiological potential, and prime its defense responses against pathogenic fungal infections. 100 µg mL−1 aqueous garlic extracts (AGE) in consort with 1 mM of acetyl salicylic acid (ASA) and distilled water as a control treatment were applied to eggplant and pepper seedlings as foliar application and fertigation methods. The results revealed stimulatory responses in the growth of the vegetables with improved plant height, number of leaves, root growth, fresh and dry weight, etc., due to AGE and ASA applications. Moreover, significant alterations were indicated in plant metabolites such as chlorophyll, carotenoids, and soluble sugars. Additionally, stimulation of the antioxidant enzymes such as superoxide dismutase (SOD) and peroxidase (POD), as well as the root activity of these plants, was observed after treatment. Application of AGE and ASA also exerted priming effects on pepper plants, inducing defense responses prior to Phytopthora capsici inoculation, and the treated plants therefore successfully resisted infection through activated antioxidant systems, and probably carotenoid and other protectory metabolites. Stress-induced H2O2 content was extremely low in the treated plants, indicating successful resistance against pathogenic infection.
    Keywords aqueous garlic extract ; biostimulant ; H2O2 ; defense priming ; SOD ; POD ; carotenoids ; Phytopthora capsici ; disease resistance ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 580
    Language English
    Publishing date 2018-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: On scores, losing scores and total scores in hypertournaments

    Shariefuddin Pirzada / Muhammad Ali Khan / Zhou Guofei / Koko K Kayibi

    Electronic Journal of Graph Theory and Applications, Vol 3, Iss 1, Pp 8-

    2015  Volume 21

    Abstract: A $k$-hypertournament is a complete $k$-hypergraph with each $k$-edge endowed with an orientation, that is, a linear arrangement of the vertices contained in the edge. In a $k$-hypertournament, the score $s_{i}$ (losing score $r_{i}$) of a vertex $v_{i}$ ...

    Abstract A $k$-hypertournament is a complete $k$-hypergraph with each $k$-edge endowed with an orientation, that is, a linear arrangement of the vertices contained in the edge. In a $k$-hypertournament, the score $s_{i}$ (losing score $r_{i}$) of a vertex $v_{i}$ is the number of arcs containing $v_{i}$ in which $v_{i}$ is not the last element (in which $v_{i}$ is the last element). The total score of $v_{i}$ is defined as $t_{i}=s_{i}-r_{i}$. In this paper we obtain stronger inequalities for the quantities $\sum_{i\in I}r_{i}$, $\sum_{i\in I}s_{i}$ and $\sum_{i\in I}t_{i}$, where $I\subseteq \{ 1,2,\ldots,n\}$. Furthermore, we discuss the case of equality for these inequalities. We also characterize total score sequences of strong $k$-hypertournaments.
    Keywords Tournament ; hypertournament ; score ; losing score ; total score ; Mathematics ; QA1-939 ; Science ; Q
    Language English
    Publishing date 2015-03-01T00:00:00Z
    Publisher Indonesian Combinatorial Society (InaCombS), Graph Theory and Applications (GTA) Research Centre, The University of Newcastle, Australia, Institut Teknologi Bandung (ITB), Indonesia
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: Anti-Oxidant Activities, Chemical Attributes and Fruit Yield of Peach Cultivars as Influenced by Foliar Application of Ascorbic Acid

    Sajid, Muhammad / Muhammad Ali Khan / Wasim Bilal / Abdur Rab / Zafar Iqbal / Sana Irshad khan

    Gesunde Pflanzen. 2017 Sept., v. 69, no. 3

    2017  

    Abstract: Peach fruit is enriched with natural antioxidants but oxidation caused by biotic and abiotic stresses, reduce these antioxidants and consequently effect the quality and yield of the fruit. Therefore, an experiment was conducted to investigate the role of ...

    Title translation Einfluss der Blattbehandlung mit Ascorbinsäure auf die antioxidative Wirkung, auf chemische Eigenschaften und den Fruchtertrag von Pfirsichkultursorten
    Abstract Peach fruit is enriched with natural antioxidants but oxidation caused by biotic and abiotic stresses, reduce these antioxidants and consequently effect the quality and yield of the fruit. Therefore, an experiment was conducted to investigate the role of ascorbic acid to sustain the natural antioxidant activity, improve the fruit quality and yield of peach cultivars (Early Grand and Florida King). The peach cultivars, Early Grand and Florida King were tested against four levels of ascorbic acid (200, 400, 600 and 800 ppm) and compared with control as water spray. The foliar application of ascorbic acid significantly influenced anti-oxidant activity and physico-chemical attributes of peach cultivars. However, the foliar application of ascorbic acid @ 800 ppm significantly increased the fruit weight, fruit yield, fruit firmness, total soluble solids, titratable acidity, antioxidant activity of fruit peel, with least percent infected fruits and fruit juice pH as compared to the rest of the treatments. Similarly, significant variation was recorded for peach cultivars regarding anti-oxidant activity and various physico-chemical attributes. The maximum fruit weight, fruit yield, fruit firmness, total soluble solids, titratable acidity and TSS/TA ratio were noted in fruit of cultivar Florida King. On other side the foliar treated fruit of peach cultivar Early Grand had the highest percent infected fruits, fruit juice pH and antioxidant activity of fruit peel. It is concluded from the significant findings of present research that the peach cultivar Florida King performed better in terms of maximum fruit yield, whereas the cultivar Early Grand produced better quality fruits with high anti-oxidant activity when treated with 800 ppm of ascorbic acid as foliar spray.
    Keywords abiotic stress ; antioxidant activity ; antioxidants ; ascorbic acid ; cultivars ; foliar spraying ; fruit juices ; fruit peels ; fruit quality ; fruit yield ; fruits ; oxidation ; pH ; peaches ; titratable acidity ; total soluble solids ; Florida
    Language English
    Dates of publication 2017-09
    Size p. 113-121.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 820036-1
    ISSN 1439-0345 ; 0367-4223
    ISSN (online) 1439-0345
    ISSN 0367-4223
    DOI 10.1007/s10343-017-0395-7
    Database NAL-Catalogue (AGRICOLA)

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